Around its 100 m-high Grande Arche and esplanade ("le Parvis"), this district holds many of the Paris urban area's tallest high-rises: with its 77.5 acres, its 72 glass-and-steel slick buildings including 14 high-rises above 150 m, its 150 000 daily workers and 3.5 million square meters of office space. La Défense is Europe's largest district specifically built for business.